MLA
Sabins. Portrait of Man Holding Hat and Sword. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 19. https://digital.library.emory.edu/purl/24298sf806-cor.
APA, 6th edition
S. Portrait of man holding hat and sword (Box 19) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/24298sf806-cor.
Chicago
Sabins. “Portrait of Man Holding Hat and Sword.” Card photographs (photographs). Langmuir Deposit - Sept 2020, n.d. Box 19. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/24298sf806-cor.